Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200601Removing EOG Artifacts from EEG Signals Using a Modified Wavelet-RLS Method1910851810.22034/jbr.2020.232798.1022ENMaryam TavakoliDepartment of Mechanical Engineering and Engineering Science, Yazd University, Yazd, IranHamed AhaniDepartment of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, Charlotte, USAJournal Article20200526EEG signals are among the weakest and most disturbing vital signals because with the slightest change in body posture, and various artifacts will be added to them. The presence of artifacts in the EEG signal leads to an incorrect analysis of this signal. Due to the importance of the subject, various methods have been proposed to eliminate these artifacts. In this thesis, the Wavelet-RLS modified method for removing eyelid articulation from the EEG signal is improved. We then compare the performance of the modified Wavelet-RLS method with the SNR and MSE criteria with the RLS and regular Wavelet-RLS methods. In this method, first, the noise signal is analyzed by the wavelet. Then the coefficients in the frequency bands, including the blinking effect, are filtered by a recursive least squares (RLS). Finally, the clean signal is reconstructed with the inverse Wavelet transformation. The results show that the performance of the modified Wavelet-RLS method is better than the regular Wavelet-RLS and RLS methods in terms of MSE and SNR.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200706Characterization and biocompatibility of hydroxyapatite nanoparticles extracted from fish bone101910940410.22034/jbr.2020.230516.1021ENEsmaeil BiazarDepartment of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.Morteza Daliri JDepartment of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran.Saeed Heidari KDepartment of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.Dehghan Navayee ABiomaterial group, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.Mahshad KamalvandDepartment of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.Mohammadali SahebalzamaniDepartment of Biomaterials, Faculty of Biomedical Engineering, Science and Research, Branch, Islamic Azad University, Tehran, Iran.Faryma RoyanianDepartment of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.Maryam ShabankhahDepartment of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.Fatemeh Farajpour LDepartment of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.Journal Article20200509In this study, hydroxyapatite (HAp) from fish bone was extracted by thermal calcination method, and then compared to chemical synthesized HAp. The samples were analyzed by Fourier Transform Infrared spectroscopy (FT-IR), X-Ray Diffraction analysis (XRD), Elemental analyze, Scanning Electron Microscopy, and cell tests. The FT-IR results showed well the presence of functional groups related to hydroxyapatite. The XRD results were in agreement with standard data. Size of the HAp Particle obtained about 300 and 50 nm for fish bone HAp and chemical synthesized samples, respectively. Good crystallinity and rod-like structures were showed for the fish bone HAp samples. The cell results with osteoblast-like cells showed well biocompatibility and proliferation of the cells on HAp nanoparticles. This study confirms that extracted fish bone is a promising biomaterial for bone regeneration.<br /> The cell results with osteoblast-like cells showed well biocompatibility and proliferation of the cells on HAp nanoparticles. This study confirms that extracted fish bone is a promising biomaterial for bone regeneration.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200701Identifying FKP-based Individuals Using the Feature Extraction of the Relaxed Local Ternary Patterns212710940710.22034/jbr.2020.232978.1024ENMahammad AnbariDepartment of Electrical Engineering, Tafresh University, Tafrsh, IranLeila ZahediSchool of Computing and Information Sciences, Florida International University.Journal Article20200527Identification based on biometric parameters is an effective way to identify people. The fingerprint effect is a feature with small image dimensions, and at the same time, distinguishable features in low image resolution and is used as a reliable biometric identifier. In this paper, a new method for identifying FKP-based individuals using the extraction feature of the Relaxed Local Ternary Patterns (RLTP) is suggested. The RLTP method has been proposed to identify faces and has led to favorable results. In this method, large neighborhood differences that are immune to noise are encoded in two specific states, and small neighborhood disturbances that are vulnerable to noise are encoded in an uncertain state. The chi-square distance criterion is used to calculate the similarity between the extraction features of the input and reference FKP images. The advantage of this method is low computational complexity while improving the high accuracy of recognition. Experimental results on a standard database confirm the success of the proposed method.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200701Carbon nano tubes: A review of application in the treatment of cervical cancer283510940510.22034/jbr.2020.235164.1026ENShabnam JahanizadehApplied Chemistry, Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, IranJournal Article20200506Nanotechnology offers new options for the design and synthesis of nano materials and has now become a very promising tool in cancer detection, diagnosis and treatment. Among the wide range of nano materials, the scientific community is interested in carbon nano materials (fullerenes, nano tubes and graphene) because of their thermodynamic properties, chemical performance, adaptability to biological systems, ease of disposal and low toxicity. Single-walled conjugated carbon nano tubes (SWNTs) are promising in the treatment of cancer and is bio compatible, easily excreted, and possesses little toxicity and have attracted much attention. Recent scientific evidence indicates the potential applications of carbon nano materials as therapeutic drugs, selective systems, and controlled drug release. The present study aimed to evaluate recent advances in carbon nano tubes, especially SWNT, to improve the treatment of cervical cancer. The nanotube drug delivery system is a treatment with potential efficacy with minimal side effects for future low-dose drug therapy.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200630Evaluation of bone like materials behavior against Vickers, Cone, and Berkovich indenters10971210.22034/jbr.2020.237438.1028ENHassan NosratiDepartment of Materials Engineering, Tarbiat Modares University, Tehran, Iran0000-0003-1509-9819Rasoul Sarraf-MamooryDepartment of Materials Engineering, Tarbiat Modares University, Tehran, IranMaria Canillas PerezInstituto de Cerámica y Vidrio, CSIC, Madrid, SpainJournal Article20200630Introduction: Indentation (micro and nano) is one of the methods used to study the mechanical properties of brittle materials. This method is performed using various indenters such as Vickers, Cone, and Berkovich.<br /> Objective: In this study, bone like materials behavior against Vickers, Cone, and Berkovich indenters was investigated.<br /> Material and Methods: In this study, spark plasma sintered hydroxyapatite-reduced graphene oxide nanocomposites were used instead of hard bone. Sintered samples were subjected to indentation technique using Vickers, Cone, and Berkovich indenters for mechanical evaluation.<br /> Result: The results showed that each method has different uses and different results. The Vickers method is more suitable for micrometer dimensions, but other methods are more suitable for nanometer structures. Using these methods, the mechanical properties of brittle materials such as elastic modulus, hardness, stiffness, and fracture toughness can be calculated.<br /> Conclusion: The results of this study are expected to be useful for the bone tissue engineering.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200601Dynamic elastic modulus and hardness mapping of reduced graphene oxide-hydroxyapatite nanocomposites using Kernel density estimation method10971110.22034/jbr.2020.237437.1027ENHassan NosratiDepartment of Materials Engineering, Tarbiat Modares University, Tehran, Iran0000-0003-1509-9819Rasoul Sarraf-MamooryDepartment of Materials Engineering, Tarbiat Modares University, Tehran, IranMaria Canillas PerezInstituto de Cerámica y Vidrio, CSIC, Madrid, SpainJournal Article20200630Introduction: Given that the biomaterials used in the body are directly related to human health, precision in such designs is very important.<br /> Objective: In this study, the effect of changing the mechanical properties of reduced graphene oxide-hydroxyapatite nanocomposites by changing the weight percentage of reduced graphene oxide was investigated.<br /> Material and Methods: rGO-HA powders were first synthesized by argon gas injected hydrothermal method. After characterization of the powders by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), and Fourier transform infrared spectroscopy (FTIR) analysis, consolidating was performed by spark plasma sintering (SPS) method on these powders. Sintered samples were subjected to a Vickers indentation technique for mechanical evaluation and analyzed by Kernel density estimation method.<br /> Result: The mechanical properties of synthesized nanocomposites increased with increasing weight percentage of graphene. An increase in graphene percentage made the affected zone smaller. Increasing the graphene sheets percentage partially improved the non-uniformity of hardness and elastic modulus. <br /> Conclusion: The results of this study are expected to be useful for the engineering design of these nanocomposites.Tissues and Biomaterial Research Group-(TBRG)Journal of Bioengineering Research2645-56332220200601A Brief Review of Application of Natural Biomaterials10940910.22034/jbr.2020.109409ENAmir AidunNational Cell Bank of Iran, Pasteur Institute of Iran Tissues and Biomaterial Research Group (TBRG), Universal Scientific Education and Research Network (USERN)Journal Article20200624